1 files changed, 3 insertions, 3 deletions
diff --git a/components/script/dom/webidls/DOMPointReadOnly.webidl b/components/script/dom/webidls/DOMPointReadOnly.webidl
index 071252c7690..bdd7eba31eb 100644
--- a/components/script/dom/webidls/DOMPointReadOnly.webidl
+++ b/components/script/dom/webidls/DOMPointReadOnly.webidl
@@ -10,10 +10,10 @@
  */
 
 // http://dev.w3.org/fxtf/geometry/Overview.html#dompointreadonly
-[Constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
-             optional unrestricted double z = 0, optional unrestricted double w = 1),
- Exposed=(Window,Worker)]
+[Exposed=(Window,Worker)]
 interface DOMPointReadOnly {
+    [Throws] constructor(optional unrestricted double x = 0, optional unrestricted double y = 0,
+                optional unrestricted double z = 0, optional unrestricted double w = 1);
     [NewObject] static DOMPointReadOnly fromPoint(optional DOMPointInit other = {});
 
     readonly attribute unrestricted double x;